Machine for setting rivets.



PATENTBD FEB. 25, 1908.

J. E. PBRRAULT.

MACHINE FOR SETTING RIVETS .LIPLICATIOH TILED JULY 31. 1907.

3 BHEETS -SHBE'I 1.

W 6 b w, M M Q m m w wa PATENTED FEB. 25, 1908.

J. E. PBRRAULT. MACHINE FOR SETTING RIVE'I'S.

APPLICATION FILED JULY 31. 1907.

3 SHEETS-SHEET 2.

ll ihzassas: lhbentor:

M /M, Josqvh EPerrault,

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' PATENTED FEB. 25, 1908.

No. 879,896. I

J. E. PERRAULT.

MACHINE FOB. SETTI NG RIVBTS.

APPLICATIOB YILED JULYSI. 1907.

4 3 SHEETS-SHEET 3.

Inventor: JasephEPermult,

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NITED STATES PATENT OFFICE.

JOSEPH E. PERRAl'lfl, OI \YALTHAM. )L-WSACHLSETTS, ASSIGNOR TO JL'DSONL. THOMSGN MTG. (ill, A CURlUlLi'ilUX Oi" MAINE.

MACHINE FOR SETTING RIVETS.

Specification of Letters Patent.

Patented m. 25, 1908.

Application filed July 31. 1907- Serial No. 386.349.

To all W710? it may concern:

Be it known that l, Just-:rn I). PERRAL'LT, a citizen of the lnitedStates. residing atli'altham, in the county of Middlesex and State ofMassachusetts, have invented new and useful improvements in Machines forSetting ltivets, of which the following is a a specification.

This invention relates to machines for l setting rivets or the like inleather or other i, sheet material. i

The object of the invention is to provide 3 an improved means forguiding the rivet from the raceway to the carrier or holder in which itis held prior to being driven in the stock by a suitable driver. inmachines of this class in which ri\ets or the like are employed whichare led from a hopper down a raceway to a carrier or other receptacle ini which the rivet is placed before being i driven. the rivet is veryliable. in passingl from the raceway to said carrier. to tip over i andenter the carrier with the shank of the rivet projecting upwardlyinstead of downwardly as is desired. This is especially liable to occurwhen a rivet has a large head 3 and short shank, and it is one of theobjects 2 of this invention to provide a device which i shall preventthe rivet from ti ping over, as hereinbefore set forth, and to liold thesame in correct position from the time it arrives at the lowermost endof the raceway until it enters the carrier from the raceway with itshead uppermost and leave the same in said carrier in pro )er position tobe driven into the stock by the driver.

It is further the object of this invention to provide a device of thecharacter set forth which may be adapted to rivets having differentsized heads and dili'erentlength! shanks and it is also to be understoodthat l the device of this invention may be adapted to articles otherthan rivets, such as tacks, nails, lacing hooks, boot buttons, etcetera.

This invention is similar in many respects to another invention made byme and set forth in a co-pcnding application Serial No. 358,614, filedFebruary 21, 1907, but differs from said invention in that the guidefinger is so formed and actuated that the lower end of said guide fingeris adapted to contact with the top of the head of the lowermost rivetwhile the same is at the bottom of the raceway and before it leaves theraceway to adapted to guide and prevent said rivet from tipping over asit passes from the raceway to the carrier. The advantage gained by thisconstruction and operation of the rivet guiding iinger as compared iththat set forth in said co-pending application for Letters Patent is thatthe rivets, instead of being fed in a continuous row down a raceway fora portion of the length of the raceway and then separated one by onefrom said column of rivets in the raceway to be dropped down anotherportion of the same i racewayone by one and then pass from said lastnamed raceway to the rivet carrier, are adapted to stand in a column ina single raceway with the lowermost rivet in the raceway held andcontrolled by said finger from the time it leaves the raceway until itarrives in its position in the carrier after leaving the raceway. Thenext rivet to the lowermost rivet is prevented from passing out of thelower end of the raceway bv the driver which is so timed as to close thelower end of the raceway in time to revent said second rivet frompassing out tereof.

The invention consists in the combination and arrangement of parts setforth in the following specification and particularly pointed 5 out inthe claims thereof.

Referring to the drawings: Figure 1 is a left hand side elevation of arivet setting machine embodying my invention, the same being partlybroken away and shown in section. Fig. 2 is an enlarged front elevation,broken away to save space in the drawings, of the raceway and mechanismfor carrying the rivets from said raceway to the material in which theyare to be driven and driving mechanism by means of which said rivets areinserted in said material and clenched therein. Fig. 3 is a sideelevation viewed from the right of Fig. 2. In Figs. 2 and 3 the rivetcarrier and driver are shown raised.

Fig. 4 is a front elevation similar to Fig. 2 with the driver andcarrier lowered into position to set the rivet in the leather. Fig. 5 isa sectional elevation taken on line 5-5 of Fig. 3 looking toward theright in said figure, showing a portion of the raceway, the rivetcarrierfthe guide finger and the driver, the driver being shown in itsuppermost position. Fig. 6 is a sectional elevation similar to Fig. 5,showing the driver part way down and just about to contact with the headof the rivet, while the guide finger is shown thrown enter the carrier,said finger being alsol man-"swas back by the driver to the left in saidfigure of the chamber in which the rivet is located in the carrier.

7 Like numerals refer to like parts throughout the several views of thedrawings.

in the drawings. 20 is the frame of the 5 machine, 21 a driver slideadapted to slide in ways 22 and having a dri er 23 fast thereto.- Thedriver slide 21 and driver 23 form, in efl'ect. one piece and will be soconsidered in the following specification and claims. Said driver 23 hasa reciproc-atory motion imparted thereto by a lever 24 connected to saiddriver by a link 25, said lever 24 being pivoted at 26 to the frame 2H.The

. lever 2-t is rocked on said pivot 26 by means ola foot-treadle andspring (not shown in the drawings) said lever being connected to saidtreadle by means of a hill 27. The downward motion of the rear end ofthe lever 2-! is limited by a stop 28 having screw-threaded I theraceway the lowermost rivet in the raceway rests against the'finger 63when the parts are in the position illustrated in Fig. 5--t-hat is, whenthe driver is up. Said finger is then moved, as hereinafter described,from the position illustrated in Fig. 5 to that illustrated in Fig. 6,remaining in contact with the head of the lowermost rivet 2!) while itis at the lower end of the raceway and as it passes from the raceway tothe carrier 36.

The carrier 36 consists of two side plates 49, -19, each provided in itsupper end with a semi-annular groove 50 to receive the head of the rivetafter it has passed from the raceway to said carrier, and beneath saidsemiannular grooves, between the plates 4!). 49. is a chamber 49'. Eachof the plates 49, 49 is fastened to a flat spring 51. said flat springbeing fastened by means of a bolt 52 and nut 53 to the carrier slide 54.The carrier slide 54 is adapted to slide in ways formed in the head 56of the frame 20 and is moved upwardly by a spiral spring 57, the lowerend of which is fastened to a screw 58 fast to said carrier slide, theupper end of said spring being fastened by a screw 59 to the head 56.The material 60 into which the rivet is to be clenched is supported uponan anvil 61 which, in turn, is adjustably supported upon an arm. 62forming a portion of the frame 20.

The guide-finger 63 is pivoted at 6-1 to the carrier slide 54. The inneredge (55 of the finger 63 is inclined at an angle, at- 66, to the driver23 and bears against the lower end of that portion of the driver which Ihave designated as the driver slide 21, as will be seen in 5, althoughit is immaterial which portion of the driver said finger bears against,whether it be the slide 21 or the driver 23. or any other rcciprm'atorypiece or movable piece actuated by said driver or by other suitablemechanism. The inner edge of said finger is held preferably in contactwith the driver by a spiral spring 67, one end of which bears againstthe outer edge of the guide finger 63, the other end of said springbearing against a plate 68 fast to the carrier slide 54. It will benoted that the guide'finger 63 is located in a slot or groove 6!)extending longitudinally of the slide 54 and opening out of the innerface thereof. it will be seen that as the rivets 29 descend the lowerportion 3-1 of the raceway and pass to the rivet carrier 36 they arevery liable to ti and enter said carrier in an inverted or partlyinverted position, as hereinbefore set forth. This is entirely obviatedby the finger ca, the lower end of which is located in the exactposition to contact. with the top of the head of the lowermost rivetwhile it is on the raceway and to move downwardly, allowing said rivetto slide freely from the lower part of the raceway into the carrier, butthe motion of said finger is so timed that it will prevent the rivetfrom tipping over by reason of the lowermost end of said linger touchingthe. top of the head of the rivet as it is passing from the raceway tothe carrier and thus guiding it and keeping it i.. -orrect position tofinally land with the b ad uppermost in the groove 50 in readiness"iven, as hereinbefore'described.

In feeding rivets of different sizes or forms it becomes necessary toadjust the guide-finger 63 so that the lower end thereof will approachthe lower end of the groove 35 in the raceway more nearly or may becarried farther away therefrom, in order to correctly guide the rivets,as set forth, and in order that the free end of the finger may rest atexactly the right position upon the head of the rivet to control thesame and prevent its tipping. To accomplish this adjustment of theguide-finger a variety of means may be employed without departing fromthe spirit of my invention. One very simple means is to limit the upwardmovement of the driver slide 21 and driver 23 by limiting the downwardmovement of the rear end of the lever 24 which can be convenientlyaccomplished by means of the stop-screw 28 (Fig. 1). I desire it to bedistinctly understood that while I have illustrated and described, inthis particular embodiment of my invention, the guide-finger 63 ashaving an inclined inner edge which bears against the lower end of thedriver. slide, it is evident that a variety of mechanical means mightbeused to rock the finger (53 upon its pivot to regulate and determine theposition of the lower end of the finger while a rivet is located uponthe lower of the raceway and subsequently while -wsiaci-mspn mm sirableresult is attained entirely by the con- 1 said rivet is passing from thelower end of the raceway into the chamber in the rivet carrier, inreadiness to be taken by the carrier to the stock and driven andclenched therein.

My improved guide-finger is capable of being used in such a manner as toeliminate as hcreinbefore set forth, the necessity of feeding the rivetsone by one by means of astop-wheel. or other equivalent means, as in theform of my invention illustrated in said application for Letters Patent,and this destruction and operation of the guidciingcr 63, extending saidguide-linger entirely across the chamber in the carrier, so that the endthereol shall rest against the top of the lowermost rivet in the racewaywhen the driver is raised.

The general operation of the mechanism hereinbefore specificallydescribed is as follows: Assuming the parts to be in the relativepositions illustrated in Fig. 5, when the driver 23 is moved downwardly,the lower end of that portion of the driver indicated as the driverslide abuts against the cam-shaped edge 66 of the linger 63, moving saidlinger toward the left. from the positionillustrated in Fig. 5 to thatillustrated in Fig. 6. allowing the lowermost rivet 2!) to pass out fromthe lower end of the raceway and enter the chamber provided in thecarrier, as illustrated in Fig. (3. At the same time the driver 23 willdescend a sullic-ieizt distance to form a block or stop to hold therivets 29, 29 upon the raceway until the driver is again broughtdownwardly after having set the tirst rivet in the stock and retreatedto its uppermostposition, as illustrated in Fig. 5. In its returnmovement it will be understood that as the driver 23 moves upwardly atof contact with the lowermost rivet in the raceway, the lowermost end ofthe finger 63 will be carried by the spring 67 beneath the lower end ofthe driver and above the chamber in the. carrier entirely thcreacrossand into contact with the lowermost rivet upon said raceway, which itwill hold in position upon said raceway until the driver begins to movedownwardly, when it releases the same.

By the construction hereinbefore described and illustrateehthe operationof the feeding of the rivets is simplified and rendered more positive.In a quick running machine, it is very desirable that the lowermostrivet on the. raceway should be as near the carrier as possible, inorder that the same may have time to be moved from the raceway to thecarrier by the force of gravity. The quicker the running of the machinethe shorter this distance must necessarily become and by theconstruction hereinbefore described and illustrated i. will be seen thatthis distance from the raceway to the carrier is reduced to a minimum.

Having thus described my invention what I claim and desire by LettersPatent to secure is:

1. In a machine for driving rivets and the Iii-1e, a raceway. a carrieradapted to receive a rivet or the like from said raceway, a movableguide-tinger. and means adapted to move said linger into contact withthe top of said rivet while it is on said raceway and to move saidlinger with said rivet and in contact with the head thereol' while saidrivet is passing from said raceway to said carrier, whereby said rivetis prevented from tipping over.

2. In a machine for driving rivets or the like. a raceway. a carrieradapted to receive a rivet or the like from said raceway. a movableguide linger adapted to engage the head of said rivet while it is onsaid raceway and as it passes from said raceway to said carrier. andadjustable means adapted to locate said nngcr relatively to said racewayand carrier v hile said rivet is on said raceway.

3. In a rivet setting machine. a reciproca-v tory driver. a raceway, arivet carrier provided with a chamber adapted to receive a rivet. alinger pivoted to said carrier. the free end of saidlinger normallylocated above and extending across said chamber and adapted to contactwith the top of the head of said rivet while it is on said raceway, theinner edge of said linger inclined at an angle to and adapted to bearagainst said driver, and means to hold said finger in sliding contactwith said driver. whercby the relative location of the free end of saidtinge-r to said chamber and raceway may be varied, and said rivetprevented from tipping over.

4. In a rivet setting machine, a reciprocatory driver, a raceway, arivet carrier provided with a chamber adapted to receive a rivet. alinger pivoted to saidcarrier, the free end of said linger normallylocated above and extending across said chamber and adapted to contactwith the head of said rivet while it is on said raceway, the inner edgeof said imger inclined at an angle to and adapted to bear against saiddriver, means to hold said finger in sliding contact with said driver,and a stop to limit the upward movement of said driver, whereby therelative location of the free end of said finger to said chamber andraceway may be determined.

5. In a rivet setting machine, a reciprocatory driver, a raceway, arivet carrier provided with a chamber adapted to receive a. rivet, alinger pivoted to said carrier, the free end of said linger normallylocated above and extending across said chamber and adapted to contactwith the head of a rivet on said raceway, the inner edge of said lingerinclined at arrangle to and bearing againstsaid driver, means to holdsaid linger in slid- 'ng contact with said driver, and an ad ustswingsaid free end laterally across said able stop to limit the upwardmovement of l said driver whereby the relative location of l the freeend of said tinger to said chamber 5 and raceway may be varied anddetermined. l

6. In a machine for driving rivets and the i like, a raceway, a carrierprovided with a chamber adapted to receive a rivet or the like from saidraceway, a guide-finger pivoted to said carrier, the free end of saidlinger normally located above and outside said chamber, and meansadapted to swing said finger entirely across said chamber and to movesaid finger with said rivet and in contact with the top of the headthereof while said rivet is passing from said raceway to said carrier,whereby said rivet is prevented from tipping over.

7. In a rivet setting machine, a l'lTiplneittory driver, an anvil. araceway, a rivet carrier provided with a chamber adapted to receive arivet, a linger pivoted to said carrier, the free end of said lingernormally located above said chamber and adapted to swing entirelyilltlczlt'tnss into contact with the top of the head ol' said rivet whenthe same is; on said raceway, and means to hold said finger at all timesin sliding contact with said driver, whereby said rivet is preventedfrom tipping over.

S. In a rivet setting machine, a reciprocatory driver, an anvil. araceway, a rivet carrier provided with a chamber adapted to receive arivet, a linger pivoted to said carrier, the free end of said lingernormally located above and extending entirely across said chamber andadapted to contact with the top of the head of said rivet when the sameis on said raceway, and a spring adapted to chamber and to hold saidfinger at all times in sliding contact with said driver, whereby saidrivet is prevented from tipping over.

9. In a rivet setting machine, a reciprocatory driver, an anvil, araceway, a rivet carrier provided with a chamber adapted to re- 4 ceivea rivet, a finger, and a pivot fast to said carrier upon which saidfinger is mounted, said pivot located at all times above the lower endof said driver, the lowermost end of said finger terminating above saidcham- 5 ber and above the lowermost outlet end of said raceway and ada)ted to contact with the top of said rivet when the same is upon and atthe lower end of said raceway, where by said rivet is prevented fromtipping over. 5 It). In a machine for driving rivets and the like, araceway, a reciprocatory carrier adapted to receive a rivet from saidraceway, said carrier provided with a chamber, a reciprocatory driver, aguide-finger pivoted to said carrier, the free end of said guide-fingernormally located above said chamber and adapted to contact with saidrivet when the same is at the lower end of said raceway, said imgerhaving its inner edge inclined to and hearing against said driver, meansto hold said linger in sliding contact with said driver, and means tostop said carrier during the upward movement of said driver, whereby therelative location of said finger to saidraceway and carrier is changedduring the latter part of the upward movementof said driver.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses. t

JOSEPH E. PERRAULT \Vitnesses \VtLLrAM P. BARTEL, S. L. UnooKETT.

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